A mini spider crane is a lightweight lifting device specifically designed for special lifting operations in confined spaces, complex terrain, and both indoor and outdoor environments. It gets its name from its spider-like shape when its multiple legs are extended. Unlike traditional truck cranes and crawler cranes, it is not a scaled-down version of large equipment, but rather a specialized engineering machine whose structure and function are fully adapted for “extreme space operations.” Mainstream tonnage ranges from 2 to 20 tons, with boom lengths from 8 to 30 meters, making it a core solution for lifting operations in confined, narrow, and irregularly shaped environments.
YG Mobile Crane Technical Parameter
| Model | YG-3 | YG-5 | YG-8 | |
| Specification | 3t | 5t | 8t | |
| Maximum working radius | 8.83m×0.15t | 14m×0.5t | 16.5m | |
| Maximum above-ground head | 9.9m×0.7t | 16.8m | 18m | |
| Winch device | Hook Speed | 0-8m/min(4 rope) | 12m/min(4 rope) | 12m/min(4 rope) |
| Rope diameter | φ8mm×45m | Φ11mm×80m | Φ11mm×80m | |
| Telescopic system | Boom Type | 5-section boom, pentagonal structure | 5-section boom, pentagonal structure | 5-section boom, pentagonal structure |
| Boom Length/Time | 3.1m-9.2m/20sec | 12.3m/54sec | 12.3m/54sec | |
| Up and down | Boom Angle/Time | 0°~78°/13sec | 0°~78°/13sec | 0°~78°/13sec |
| Slew system | Slew Angle/Speed | 0-360°continuous/60sec | 0-360°continuous/38sec | 0-360°continuous/38sec |
| Traction system | Walking Way | Hydraulic motor drives | Hydraulic motor drives | Hydraulic motor drives |
| Walking Speed | 0~2.5km/h | 0~2.5km/h | 0~2.5km/h | |
| Grade Ability | (25°)36% | (25°)36% | (25°)36% | |
| Operating system | Operation type (Boom/outrigger) | Manual operation, manual walking(remote control option) | Manual operation, manual walking(remote control option) | Manual operation, manual walking(remote control option) |
| Operating characteristics | Manual operation, remote control | Manual operation, remote control | Manual operation, remote control | |
| Transport parameters | L*W*H(mm) | 2950*980*1560 | 5000*1500*1900 | 5000*1600*2180 |
| Total weight(kg) | 2700 | 6200 | ||
The Mini Spider Crane’s Working Principle
The mini spider crane uses hydraulic transmission as its core, leverage principles as its foundation, and intelligent control as its auxiliary mechanism to achieve stable lifting, precise movement, and safe operation of heavy objects. It operates smoothly and is highly maneuverable.
- Power Transmission: Fuel or an electric motor drives the hydraulic pump, converting mechanical energy into high-pressure hydraulic energy, which is then delivered to various hydraulic actuators. High-pressure oil controls the extension and leveling of the outstretched legs, the boom’s extension and luffing, the 360° rotation of the crane body, and the hoisting of the wire rope for lifting and lowering heavy objects. Hydraulic valves regulate pressure and flow to achieve stable power output for the entire machine.
- Stable Support： Four independent hydraulic outriggers are individually adjustable in length and angle to adapt to uneven and complex terrain. The outriggers’ anti-slip pads unfold to form a stable support surface, distributing weight and load to ensure operational stability. The outriggers retract during relocation, facilitating passage and transportation.
- Precise Operation： Operating commands are issued via wired or wireless handles. The intelligent controller combines data from sensors such as boom angle, load, and outrigger pressure to precisely control hydraulic movements. The equipment possesses millimeter-level micro-motion performance, ensuring smooth lifting, lowering, and rotation without swaying, meeting the high-precision lifting requirements for precision equipment, glass curtain walls, etc. It also comes standard with overload, overturning, and travel limit protections, with automatic alarms and lockouts in case of abnormalities, providing comprehensive safety assurance for construction.
YG Mini Spider Crane Accessories and Advantages/Disadvantages
The core structure of the mini spider crane consists of five major modules: a tracked chassis, independent hydraulic outriggers, a multi-section telescopic boom, a hydraulic power system, and an intelligent control system. The tracked chassis is suitable for complex terrains such as mud and gravel; the independent outriggers provide stable support on uneven ground; the telescopic boom covers a wide operating area; the hydraulic system provides powerful performance; and the intelligent control system ensures precise operation. It is a core piece of equipment for interior decoration, equipment installation, and hoisting in confined spaces.
1. Core Accessories (Refer to product model for details)
- Standard Accessories: High-strength manganese steel wire rope, anti-derailment device, anti-slip rubber tracks, hydraulic outrigger pads, wired control handle, overload limiter.
- Optional Accessories: Wireless remote control, hydraulic boom (extended by 3-5 meters), vacuum suction cup, hydraulic clamps, high-definition monitoring camera, anemometer.
2. Core Advantages and Disadvantages
Advantages:
- Excellent space adaptability: The narrow body allows it to enter confined spaces inaccessible to traditional cranes without requiring additional passageways.
- Wide Terrain Adaptability: Tracked + independent outriggers, suitable for muddy, gravel, steep slopes, and uneven ground, ensuring stable operation.
- Precise, Efficient, and Safe: Millimeter-level micro-motion control, suitable for precision installation; multiple safety protections eliminate the risk of overloading and tipping; electric model is environmentally friendly and energy-saving.
- Low Maintenance Costs: Modular design, convenient troubleshooting, highly interchangeable wear parts, low maintenance costs; lightweight and easy to transport.
Disadvantages:
- Limited Large-Tonnage Lifting: Mainstream tonnage is 3-8 tons, unable to meet the lifting needs of ultra-heavy (>10 tons) equipment.
- Low Efficiency for Long-Distance Operations: The maximum operating radius is 16.5 meters, and long-distance lifting efficiency is lower than that of large truck cranes.
YG Mini Spider Crane FAQs
1. Can the YG spider crane operate on cement/epoxy floors?
Yes. It comes standard with anti-slip rubber tracks, with a ground pressure ≤0.5 tons/m², preventing scratches and cracks to the ground.
2. How to level the outriggers of the YG spider crane on inclined ground?
The YG spider crane is equipped with an intelligent hydraulic leveling system. All four outriggers can be independently extended and adjusted, supporting adaptive leveling on ±15° inclined surfaces. The control panel displays outrigger pressure and levelness in real time, with one-button automatic leveling, eliminating the need for manual measurement. This ensures high leveling accuracy and stable operation.
3. Can the YG spider crane lift precision equipment?
Yes. The equipment supports millimeter-level micro-motion control, allowing for smooth low-speed movements of boom rotation, luffing, and load lifting, preventing equipment swaying or impact. Optional hydraulic clamps can precisely grip precision components.
4. What are the advantages of the YG spider crane compared to traditional small cranes?
Compared to traditional small cranes, YG spider cranes are narrower (0.8m vs 1.5m), more adaptable to terrain (tracked vs wheeled), offer more flexible outrigger adjustment, more precise control, lower ground pressure, and lower maintenance costs, making them the optimal choice for lifting in confined spaces and complex terrains.
YG Machinery – A Professional Spider Crane Manufacturer
In the field of confined space lifting, YG Machinery, as a professional spider crane manufacturer, leverages 20 years of experience in engineering machinery R&D and manufacturing to deeply address the pain points of confined space lifting, creating a full range of spider crane products suitable for industrial scenarios.
Technically, YG spider cranes utilize high-strength manganese steel, imported hydraulic systems, and intelligent control technology, resulting in industry-leading stability, safety, and precision. Product-wise, they cover a full range of tonnages from 3 to 8 tons, offering fuel-electric hybrid powertrains and flexible standard/high-end configurations to precisely meet the needs of customers of different sizes. Service-wise, they provide customized solutions, free installation and commissioning, lifetime technical guidance, and global after-sales support, eliminating customers’ concerns about procurement and use. Click to receive customized solutions and accurate quotes, and view more equipment photos, construction videos, and customer case studies! Act now!
